21222705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{202121}}^1$

素因数の和:202136

約数の個数: 16

約数和(自身を含む): 38807424

約数和(自身を除く): 17584719

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 202121, 606363, 1010605, 1414847, 3031815, 4244541, 7074235, 21222705]

約数ペア:

[(1, 21222705), (3, 7074235), (5, 4244541), (7, 3031815), (15, 1414847), (21, 1010605), (35, 606363), (105, 202121)]